部首
儿 part 2
兄, older brother; 充, full, sufficient; 先, first ( pinyin )
https://www.mdbg.net/chinese/dictionary?cdqrad=10

词汇
熟人, acquaintance; 成熟, mature ( pinyin )
https://mandarinbean.com/new-hsk-3-word-list/
[this one drives me crazy because I can never remember when it's shú and when it's shóu]

Guardian:
那也就是说准备的越充分，对于他们越有利, that means the more thoroughly we prepare, the more of an advantage they have
现在在我面前没有熟人，只有仇人和挡我路的人, right now I see no acquaintances, only enemies and people in my way

Me:
谁要记仇啊，我们是兄弟。
我有跟他见过面，但是我们俩不算熟人。